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Please can you help me do the following. Where a k and B are positive constants

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Thirunavukkarasu
Thirunavukkarasu 2014-3-25
关闭： MATLAB Answer Bot 2021-8-20
Please can you help me do the following. Where a k and B are positive constants
syms x a k B
solve(((2*a)/7)*x^(3.5)-2.5*a*k*x^(2.5)+B,x)

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回答（1 个）

Carlos
Carlos 2014-3-25
If a, k and B are constants just asign the value they have and solve, there is no need to declare them as a syms variable.
>> syms x
>> a=1; k=1; B=1;
>> solve(((2*a)/7)*x^(3.5)-2.5*a*k*x^(2.5)+B,x)
ans =
8.7344769955854508972394619014664
0.71726877230987929915059388309187
8.7653865185792513553265174943496
- 0.55353695900302117825404059660525 + 0.38822741859907251304729067726326*i
0.19497081576573040239575395715129 + 0.67080407314445742463715094632198*i
0.19497081576573040239575395715129 - 0.67080407314445742463715094632198*i
- 0.55353695900302117825404059660525 - 0.38822741859907251304729067726326*i

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